Cam mechanism for looms for weaving tubular ties having reinforcements at the knot-tying spaces.



' G. SEIDMAN. 13AM MECHANISM FOR LOOMS FOB. WEAVING TUBULAR TIES HAVING 'RBINPOROEMENTS -AT THE KNOT TYING SPACES.

APPLICATION FILED JUNE 22', 1914.

Patented Feb. 16, 1915. 1

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APPLICATION FILED JUNE 22, 1914.

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CHARLES SEIDMAN, 0F PHILADELPHIA, PENNSYLVANIA.

CAM MECHANISM FOR LOOMS FOR WEAVING TUBULAR TIES HAVING REINFORCEMENTS AT THE KNOT-TYING SPACES.

Specificationof Letters Patent.

Patented Feb. 16, 1915..

Application filed June 22, 1914. Serial No. 846,431.

To all whom it may concern:

Be it known that l[, CHARLES SEIDMAN, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Cam Mechanism for Looms for Weaving Tubular Ties Having Reinforcements at the Knot-Tying Spaces, of which the following is a specification.

My present invention relates to a loom for weaving tubular ties, and is especially directed to a novel cam mechanism, whereby the desired shape is given to the tie during the process of weaving, so that the warps are automatically positioned closer together at the places where the knot is to be made, than at the end portions of the ties, so that the knot forming portions, which are subjected to strain and wear, will be strong and durable, while the end portions, which are not subjected to strain are relatively soft and pliable, thereby permitting ease of tying and the possibility of producing a small knot, while the end portions will be of a desired width.

With the above in View, my invention consists of a novel cam mechanism for looms for weaving tubular ties.

It further consists of novel means for controlling the position of the reeds during the weaving operation.

It further consists of a novel signaling device, which indicates to the operator when the ties are completed.

It further consists of other novel features of construction, all as will be hereinafter fully set forth.

For the purpose of illustratingmy invention, I have shown in the accompanying drawings, forms thereof which are at present preferred by me, since the same will give in practice satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described.

Figure 1 represents a sectional elevation of a portion of a loom showing a cam mechanism therefor embodying my invention. F g. 2 represents a top plan view of Fig. 1. Fig. 3 represents, in perspective, a portion of the loom, showing the manner in which the reeds are operated by the cam. Fig. 4 represents a plan view of a necktie which has been woven by my novel mechanism. Fig. 5 represents, in detached position, a plan View of a cam embodying my invention. Fig. 6 represents, in detached position, a plan view of a cam, showing another embodiment of my invention.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings :-The operation of the heddles to form the shed and the manner of passing the weft or filling through the shed is well known to those skilled in this art, and a detailed description of the construction and operation of such means is therefore deemed to be unnecessary, smce my present invention is especially directed to novel means for controlling the position of the reeds.

1 designates a driving shaft, which has mounted thereon a sprocket wheel 2, around which passes a chain 3, which extends tothe take-up beam in the usual manner.

4 designates a cam embodying my invention, which is adjustably mounted on the shaft 1 by means of a set screw or equivalent device 5. The cam 4, as best seen in Fig. 5, is provided with a cam surface 6, cam surface 7 a dwell 8, and a cam surface 9, said surfaces being located on the periphery of the cam and adapted to engage the roller 10, which is journaled in a bracket 11 carried by a bar 12. One end of the bar 12 is fulcrumed, as at 13, to a stationary portion of the loom, and the other end thereof is provided with an eye or book 14, to which is connected a turn-buckle 15, which is constructed in the usual manner, the members 16 and 17 thereof being provided with threads of a different character, such as, for example, right and left hand threads. The member 16 has connected therewith a rod or cable 18, which latter is also connected with the arm 19 of a rock shaft 20 journaled in any desired manner. The rock shaft 20 is provided with any desired number of arms 21, which are connected by means of rods or cables 22 to the frames 23, in which are located any desired number of reeds 2a, which, as will be clearly understood by reference to Fig. 3, are slightly fan shaped or wider at their top than at their bottom, so that the vertical adjustment of the reeds will determine the spacing of the warps from each other, and thereby the width of the tie which is being woven.

The cam a is provided with a pin 25, which moves in the path of a lever 26, fulcrumed at- 27, to a stationary point of the loom frame-work. The free end of the lever 26 has connected therewith a cable 28, which is adapted to operate the signal 29, such as, for example, a bell, which indicates to the operator when the ties have been completed. During the formation of the shorter knot tying portion, the cam face '4' of the cam 4: is in engagement with the roller 10. During the formation of the Wide part of the tie, the cam face 8 is in engagement with the roller 10. During the formation of the longer knot tying portion of the tie, the cam face 9 is in engagement with the roller 10, and during the formation of the neck-band portion of the tie, the cam face 6 is in engagement with the roller 10, so that such band is of substantially uniform width throughout its length and the warps are equally spaced throughout the band portion.

In the embodiment seen in Fig. 6, I have shown a somewhat different form of cam 30, which can be substituted for the cam 4: in order to change the character of the completed tie. WVhen the cam face 31, between the lines '32 and 33, is in engagement with the roller 10, the neck or band portion of the tie will be formed. When the cam face 34:, between the line 33 and the line 35, is in engagement with the roller 10, one of the knot forming portions will be woven, and when the cam face 36, between the line 32 and the line 37, is in engagement with the roller 10, the other knot forming portion will be woven, and when the cam face 38, between the lines 35 and 37, is in engagement with the roller 10, the wide part of the tie, such as the end, will be woven.

In Fig. l, I have shown the product as completed, the same showing a tie having a band portion 39, knot tying portions 40, and end portions 41.

The reedis brought forward to beat the weft into position by means of the bar 452, which is actuated in the usual and wellknown manner, and a detailed description thereof is therefore not necessary to those skilled in this art.

By the employment of my present invention, the tie is automatically shaped throughout its length, and the warps, throughout the knot forming portions 4L0, are spaced a different distance from each other than they are throughout the end portions 41, or in other words, the picks in the knot forming portions are finer than the picks in the end portions.

It will, of course, be understood, that I provide sets of heddles to produce upper and lower portions of the necktie, so that instead of weaving a flat fabric, a woven tubular necktie is formed, and the colors vary in accordance with the number of colors of the wefts or filling which are used.

Attention is directed to the fact that the knot tying portion on one side of the neck band is longer than the knot tying portion on the other side of the neck band, so that a knot of small size may be formed and the remaining ends of the tie will be of substantially uniform width.

By adjusting the turn-buckle 15, the amount of movement imparted to the reeds may be varied, as desired. Attention is also directed to the novel means employed to indicate to the operator when the ties are completed, said means being directly controlled by my novel cam.

It will be seen from Fig. 5, that the cam i has on opposite sides thereof, radial cam faces, the radii of which have a common center, as seen at 6 and 8, and the cam face 8 forms a dwell. The cam faces 9 and 7, seen in Fig. 5, are formed or struck by two radii having different centers, while the radii of the radial cam faces 6 and 8, as stated, have a common center, so that the centers of the radii of the curved cam faces 9 and 7 are different from the common center of the radii of the radial cam faces 6 and 8, said cam seen in Fig. 5, being on a reduced scale substantially a facsimile of the cams employed in practical use by me.

So far as I am aware, I am the first in the art to employ the cam structure herein described, having the working faces (3, '4', 8, 9 proportioned and correlated for the purposes described, whereby a woven tubular necktie having the characteristics hereinbefore explained can be produced, and my novel cam structure, together with. its coacting mechanism, as well as my novel product produced thereby, is clearly diiierentiated from prior structures with which I am familiar, which merely produce a narrowing of the fabric, since such a device would be entirely unsuited and unadaptcd to use as a tubular woven necktie, as will be apparent to those skilled in the art.

It will now be apparent that I have devised a novel and useful cam mechanism for loom for weaving tubular ties having reinforcements at the knot tying spaces, which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description, and while I have, in the present instance, shown and described preferred embodiments thereof which will give in practice satisfactory and reliable results, it is to be understood that the same are susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A device of the character stated, comprising a cam having on opposite sides thereof cam faces, one of which is of longer graduation than the other cam face, said cam faces being connected by dwell form ing faces struck from a common center, and a fan-shaped reed controlled by said cam.

2. A device of the character stated, comprising a cam having on opposite sides thereof cam faces, one of which is of longer graduation than the other cam face, said cam faces being connected by dwell forming faces, and a fan-shaped reed controlled by said cam.

3. A device of the character stated, comprising a reed, a rock shaft operatively connected therewith, an arm carried by said rock shaft, a longitudinally adjustable cable having one end connected with said arm, a lever having one end movably mounted and its other end connected with said cable, an anti-friction device carried by said lever, a cam having cam faces 6, 7, 8 and 9, res-pectively, cooperating with said anti-friction device, actuating means for said cam, a signaling device, and connections between said signaling device and said cam, whereby the signaling device is actuated when the article being woven is completed.

4.. A device of the character stated, comprising a cam having on opposite sides thereof, radial cam faces 6 and 8, the latter of which forms a dwell, said cam faces being connected by curved cam faces, the radii of which latter faces have different centers, the radii of the other faces 6 and 8 having a common center, the centers of radii of said curved faces being different from the center of the radii of said radial cam faces, in combination with a reed controlled by said cam faces, and a signalcontrolled by said cam.

In a loom mechanism for weaving tubular ties having reinforcements at the knot tying spaces, a cam comprising a body portion having on opposite sides thereof a cam face 6 and a cam face 8, said face 6 being of greater area and struck from a longer radius than said face 8, the latter controlling weaving operations adapted to form the neck portion of a tubular woven necktie and said face 8 serving as a dwell and adapted to control weaving operations adapted to form the wide parts of said tie, and oppositely located cam faces 7 and 9 forming continuations of the termini of said faces 6 and 8, said face 7 controlling weaving operations adapted to form the short graduation of said tie and being of less length than said face 9, the latter controlling weaving operations adapted to form the long graduation of said tie, and said faces 7 and 9 being struck by radii having different centers.

6. In a loom mechanism for weaving tubular ties having reinforcements at the knot tying spaces, a cam comprising a body portion having on opposite sides thereof a cam face 6 and a cam face 8, said face 6 being of greater area and struck from a common center with, but from a longer radius than said face 8, the latter controlling weaving operations adapted to form the neck portion of a tubular woven necktie and said face 8 serving as a dwell and adapted to control weaving operations adapted to form the wide parts of said tie, and oppositely located cam faces 7 and 9 forming continuations of the termini of said faces 6 and 8, said face 7 controlling weaving op erations adapted to form the short graduation of said tie and being of less length than said face 9, the latter controlling weaving operations adapted to form the long graduation of said tie, and said faces? and 9 being struck by radii having different centers, in combination with a reed controlled by said cam, means for actuating said cam, and connections intermediate of said cam and reed for operating the latter.

7. In a loom mechanism for weaving tubular ties having reinforcements at the knot tying spaces, a cam comprising a body portion having on opposite sides thereof a cam face .6 and a cam face 8, said face 6 being of greater area and struck from a longer radius than said face 8, the latter being adapted to form the neck portion of a tubular woven necktie and said face 8 serving as a dwell and adapted to form the wide parts of said tie, and oppositely located cam faces 7 and 9 forming continuations of the termini of said faces 6 and 8, said face 7 forming the short graduations of said tie and being of less length than said face 9, the latter forming the long graduation of said tie, and said faces 7 and 9 being struck by radii having different centers, in combination with a fan-shaped reed controlled by said cam faces and a signaling device also controlled by said cam to indicate the completion of the article woven.

8.111 a loom mechanism for weaving "-tubnler ties having reinforcements at the by said cam faces, and a signal also conlmot tying spaces, a cam having on opposite trolled by said cam.

sides thereof cain faces, one of which is of CHARLES SEIDMAN. longer graduationcthan the other cam face, Witnesses:

5 said cam faces being connected by dwell H. S. FAIRBANKS,

forming faces, a fan-shaped reed controlled C. D. MOVAY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, D. C. 

